Dizziness in older adults: why it happens and what helps

"Dizzy" is one word doing the work of four. To one person it means the room is spinning. To another, the floor feels untrustworthy. To a third, the lights are about to go out. To a fourth, it's a vague fog over the whole day. Those are different problems with different causes, and in older adults they often come two or three at a time. That's why dizziness in older adults is both one of the most common reasons they see a doctor and one of the most misread.

You don't have to diagnose it. A worried family's job is smaller: describe the spells well, know the version that's an emergency, and deal with the ordinary causes behind most of the rest. The National Institute on Aging treats balance problems in older adults as something to evaluate, not accept. Dizziness is a signal, and most of the time it points to something fixable.

Four things people mean by dizzy

Doctors sort dizziness into four kinds, and each points in a different direction:

• Vertigo, a false sense of motion, usually spinning. It points first to the inner ear.
• Lightheadedness, feeling about to faint. It points to blood flow, often a drop in blood pressure.
• Unsteadiness, feeling wobbly on the feet without anything happening in the head. It points to the legs, nerves and balance as a whole.
• A vague fog that resists description. It often points to medicines, mood, or several small things at once.

One caveat: people are surprisingly bad at picking their category. In one study, about half of patients changed their answer when asked again a few minutes later. So don't fuss over the right word. What helps the doctor more is when a spell happens and what sets it off, which we'll come back to.

First, rule out the dangerous kind

A stroke in the back of the brain can show up as sudden, severe dizziness, and the familiar FAST stroke check can miss it because it leaves out balance and vision. Use the longer version, BE FAST:

• Balance: sudden loss of balance or coordination.
• Eyes: sudden vision loss or double vision.
• Face: one side drooping.
• Arms: weakness or numbness on one side.
• Speech: slurred or confused.
• Time: call 911 right away.

Also call 911 for dizziness with a sudden severe headache, chest pain, a racing or irregular heartbeat, fainting, trouble breathing, a sudden change in hearing, or new confusion. Dizziness after a head injury needs urgent care, especially for someone on a blood thinner, and so does constant new spinning that won't settle.

Most dizziness is not a stroke, and you shouldn't live braced for one. But check this list first, every time, because it's the one kind where minutes matter. MedlinePlus has a plain-language overview of dizziness and vertigo with the same warning signs.

The spinning kind: loose crystals in the inner ear

Short bursts of true spinning set off by a change in head position (rolling over in bed, lying down, sitting up, tipping the head back to reach a shelf) point to the most treatable cause. It's called BPPV, benign paroxysmal positional vertigo, and it's a common cause of vertigo in older adults. Tiny calcium crystals in the inner ear come loose and drift into the balance canals, where every head movement sloshes them around and tells the brain it's spinning. The spinning usually lasts less than a minute.

In older adults BPPV can hide, showing up as plain unsteadiness or a near fall instead of dramatic spinning. It responds well to treatment. A clinician confirms it with a positioning test and then performs a repositioning maneuver, such as the Epley, which guides the crystals back where they belong. It often works in one or two sessions.

This isn't a do-it-yourself project. The maneuver involves neck movements that aren't safe for everyone, and the National Institute on Deafness and Other Communication Disorders describes it as a treatment done by a trained clinician. The right step at home is booking the appointment.

The standing-up kind: blood pressure that lags behind

If the dizziness comes within seconds of standing (a lightheaded, gray-edged feeling that eases after a moment), the cause is usually blood pressure. Standing pulls blood down into the legs. A younger body tightens its blood vessels and speeds the heart almost instantly. An older body is slower, so for a few seconds the brain runs short and the room swims. Doctors call it orthostatic hypotension, and a 2020 analysis of 20 studies found it in about one in five older adults living at home.

It's often worst first thing in the morning, after a night without fluids, and after a big meal. The fixes are different from the inner-ear kind, and pleasingly low-tech. They're in the home section below. If blood pressure runs low in general, our guide to low blood pressure in the elderly covers it in more depth.

The cause in the medicine cabinet

Medicines are among the most common causes of dizziness in older adults, and the risk climbs with the number of pills. The usual suspects:

• Blood pressure medicines and water pills.
• Nitrates and other heart medicines.
• Sleeping pills and anti-anxiety drugs such as benzodiazepines.
• Some antidepressants.
• Sedating antihistamines and the anticholinergic ingredients in some allergy, bladder and nighttime sleep aids.
• Opioids and muscle relaxants.

Dizziness that began within days or weeks of a new prescription or a dose change points straight at the bottle. Don't stop a suspect medicine on your own, because some are dangerous to stop suddenly. Gather every prescription, over-the-counter product and supplement and ask the pharmacist or doctor for a review. Our guide to medication management for seniors explains how to set that up.

Quieter causes

Dehydration is high on the list, because thirst fades with age. So are anemia, low blood sugar (especially for someone with diabetes on insulin), and heart rhythm problems. Anxiety is a real cause, not an imagined one.

Underneath runs the slow fade of the inner ear, the eyes and the nerves in the feet. In national survey testing, most people 80 and older showed measurable inner-ear balance decline, though many never noticed. When two or three of these overlap, the result is the kind of dizziness geriatricians treat as a whole rather than as one broken part.

One pattern deserves mention. A fairly sudden change in steadiness or alertness can be an infection, and a urinary tract infection is a classic example. Our guide to UTIs and confusion in the elderly explains why.

What helps at home

• Keep fluids up and meals regular.
• Stand in stages: sit on the edge of the bed for a minute, pump the ankles a few times, then rise. A glass of water before getting up helps.
• Wear flat, non-skid shoes instead of socks or smooth slippers.
• Clear cords and loose rugs, brighten the lights, and add grab bars and a lit path to the bathroom for nighttime trips. Our guide to bathroom safety for seniors shows where to start.
• Keep a dizziness diary: when each spell hit, how long it lasted, what set it off and what helped.
• Ask the doctor about vestibular rehabilitation, physical therapy that retrains balance. Our guide to balance exercises for seniors covers the basics.
• Don't drive during a stretch of unpredictable spells.

A second person in the house makes most of this easier, as long as the line between helping and treating stays clear. Our caregivers drive to appointments, offer drinks through the day, keep the diary current and walk alongside on wobbly days, through companion care and mobility care. What a caregiver doesn't do is diagnose, perform the Epley maneuver or change a medicine. Those belong to a clinician.

The sentence that helps your doctor most

At the appointment, the most useful thing you can bring isn't a medical label. It's a clear sentence about timing and triggers.

• "It's brief spinning, under a minute, when she rolls over in bed" points to the inner ear.
• "He goes gray and grabs the counter for a few seconds when he stands up, worst in the morning" points to blood pressure.
• "It started two weeks after the new blood pressure pill" points to the medicine.

Bring the medicine list and the diary, and mention anything that changed recently: a new pill, a fall, a cold. A frightening, shapeless symptom becomes a short list a doctor can work through. If your parent needs someone there on the wobbly days or a ride to the specialist, call us or request care.

This article is general information, not medical advice. Any new, severe or persistent dizziness in an older adult should be checked by a doctor.